High-precision custom plastic injection
molding is our business.

Meeting and exceeding the performance
demands of medical and electronics
OEMs is our mission.

Precision. Passion. People.

MOS Plastics specializes in high-precision injection-molding, contract manufacture and assembly for medical and electronics OEMs. After 35 years in the heart of Silicon Valley, we understand the performance expectations of cutting-edge companies delivering disruptive technologies.

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Medical Device Manufacturing Capabilities & Certifications


"We have come to count on MOS for their quality and on-time delivery. MOS engineered improvements to our original design that significantly improved performance and allowed us to increase market share in a very competitive marketplace."

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Engineering-Driven Quality

We begin each project with an Engineering Design Review. MOS engineers will recommend design modifications to optimize cost and ensure manufacturability.

Give us a call when you want it right the first time.

Request a Consultation

KS Automotive Kennerly-Spratling, Inc.